Andrea Hsu

Andrea Hsu is a Senior Producer for NPR's All Things Considered. She also edits and writes for NPR's health bog, Shots.

Hsu first joined NPR and All Things Considered in 2002. Through interviews and in-depth series, she's covered topics ranging from America's opioid epidemic to emerging research at the intersection of music and the brain. She led the award-winning NPR team that happened to be in Sichuan Province, China, when a massive earthquake struck in 2008. Andrea came to NPR via National Geographic, the BBC, and the long-shuttered Jumping Cow Coffee House.

As rains pounded Houston on Sunday, Dr. Karen Lu took to Twitter and conveyed both alarm and reassurance: "Roads around @MDAndersonNews impassable. Our on-site ride out team is caring for patients and we are all safe."

As floodwaters continue to rise in parts of Houston, health workers are trying to keep people safe and well, though that challenge is escalating.

"The first and foremost thing that everybody's concerned about is just getting folks out of harm's way with the flooded waters," says Dr. Umair Shah, Executive Director of Harris County Public Health, whose own home came under mandatory evacuation Tuesday morning.

As health departments in Texas try to assist people with immediate medical needs following Hurricane Harvey, they're also looking to ensure that those affected can get the prescription drugs they need and stay as safe as possible.

"Our best advice is always to avoid floodwater as much as you can," says Chris Van Deusen, a spokesman for the Texas Department of State Health Services. "Of course, people have had to be in the water — they haven't had a choice."

To get a sense of how severe the opioid crisis is in the U.S., you can look at the number of fatal overdoses — more than 33,000 in 2015, according to the Centers for Disease Control and Prevention. That means, on average, 91 people are dying after overdosing on opioids each day. And for every fatal overdose, there are believed to be roughly 30 nonfatal overdoses.

Update 3:35 pm August 10: Two days after making a few general remarks about the opioid crisis, President Trump on Thursday called it "a national emergency" and said his administration would be drawing up papers to make it official.

"We're going to spend a lot of time, a lot of effort and a lot of money on the opioid crisis," Trump told reporters at his golf club in Bedminster, N.J.